cmd/list: fix -retracted flag description
Change-Id: Ia1ab220485af2f38c3ddcd4c5d5bca1b195a33ed
GitHub-Last-Rev:
fb9933427d852518c93efbc4f2c2e4d4ee9b9197
GitHub-Pull-Request: golang/go#59847
Reviewed-on: https://go-review.googlesource.com/c/go/+/489175
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>